Convergence errors in Abaqus, too many attempt error, (Interactions in Abaqus Part - 04)

[@moneyminded2918]

I like the way you present the problem description and its solution in the video. you're way is totally defferent and unique. Keep the good work going up.

[@arsitech-ltd]

Sure dear, & Thanks for appreciating work.

[@hephaistion3]

You are the lord of Abaqus!

[@arsitech-ltd]

Dear, My knowledge not more than 10% in FEA. Sky of FEA is limitless i know only few clouds.

[@mangeshjadhav9134]

Again... knowledgeable video... Waiting for next video

[@arsitech-ltd]

Thanks..

[@kenfackromaricpavel5042]

Like your all videos they are all great

[@arunantoaa]

Superb content

[@lintapaul3108]

Sir Really informative video

[@abhimuliya7456]

"Abaqus/CAE kernel exited with an error, how to resolve", this message shows after installation when I open Abaqus 2023 first time in my Windows 11 Laptop

[@cha-e_8565]

Dear sir, adjustment and no adjustment for finite sliding are available in STANDARD surface to surface as u presented. Yet,this option doesn't exist for EXPLICIT surface to surface contact.Why these options doesn't offer in Explicit contact?

[@arsitech-ltd]

Dear, Contact control options are available for explicit also but not Directly in contact defination. We need to define control individually otherwise it consider default one.

[@zainsaeed147]

I am conducting uniaxial tensile test on a grouted sleeve connection...i was advised to do mesh convergence study before the velocity convergence ...i analyzed my model with different mesh sizes and plotted the load displacement curves..the models shows same peak load at mesh size of 10mm, 15 and 20mm but once i lower the mesh size i get the lower values of peak load. so should i consider that the solution got converged at 10mm. ??

[@zainsaeed147]

my expectation was that when i reduce the mesh size it should give me higher peak loads for the connection but vice versa happened

[@arsitech-ltd]

Dear, Mesh convergence means you will get near to constant value even if u reducing mesh size. If not then convergence study is incomplete.

[@kuumarr1980]

what was the warning posted during the last part of the video with slave adjustment. it shall be useful for me understand better

[@aju007pv]

Sir can u explain about normal and tangential behaviour....and also types of contacts and contact algorithm in abaqus??? Very useful video....thanks a lot sir

[@arsitech-ltd]

Dear, Types of contacts i already explained. Video available in contact playlist - SimTech05 channel. Normal and tangential behaviour I'll explain in subsequent videos.

[@rzgarasadd2395]

Sir plz could you tell me how can fix value of minimum increment time when i change ot it go to oringinal value again not changet then when run model it give me too many attempt

[@shuangbiaoliu6055]

Thank you for the video. But it seems that although the adjustment allow Abaqus to complete the simulation, the result is not reflecting the interference. So the adjustment did not really solve the issue, right? Do you have a way to solve the issue and get a proper solution?

[@arsitech-ltd]

Dear, Initial adjustment option is used when the unwanted small penetration of elements/nodes. It remove penetration without any stress development. On other hand... For press fit type of problem you need to introduce interference fit parameters in contact.

[@rahulrakshit2865]

Sir I tried stretch forming operation...deformable shell as sheet and rigid shell as binder....I am giving load on the binder but the load is not getting transmitted to sheet....Is the problem due to interaction?

[@arsitech-ltd]

Yes, Something missing in interaction.

[@rahulrakshit2865]

@@arsitech-ltd I am using explicit and have given general contact... Please give some suggestions how to make it successful

[@arsitech-ltd]

If any error/warning msg appears plz check it.

[@rahulrakshit2865]

@@arsitech-ltd no error...but there are warning messages..1.BCs have been prescribed at each nodes belonging to rigid bodies but are not rigid body reference nodes...Such BCs don't constrain motion of rigid body..... 2. OP=NEW on CONTACT is ignored when general contact definition is specified as model data.

[@arsitech-ltd]

Need to look at model. Plz send on my mail - [e-mail]

[@hassanraza3786]

Sir, how to resolve this issue if we use orphan mesh imported from hypermesh.

[@arsitech-ltd]

Dear, If possible use adjust option to remove overclosure. If intersection of elements are excessive..you need to modify mesh.

[@hitman5601]

HELLO SIR I AM DOING IMPACT SIMULATION ON COMPOSITE MATERIAL BUT WHILE CALCULATING RESIDUAL VELOCITY MY VELOCITY IS NOT REDUCING MUCH IT ONLY REDUCE FROM 100 TO 99M/S ANY IDEA?

[@Shein98]

Hello sir.. i Simulation friction stir welding of 6061Al .. in welding step after 4 second it stopped and nor convergence occurred.. I change Element size and Check temperature(under melting point) but i didn’t solve error.. can you help me how i do??

[@arsitech-ltd]

Plz let me know how can i help you dear ? For variety of model and steps there can be lots of possibilities of this error. What error msg u have ?

[@Shein98]

SimTech05 I send image to telegram group.. can you answer there?

[@Shein98]

SimTech05 When i use slow welding transverse, the model is stopped at 4 second and no increments occur.. no problems in plug and dwell occur.. just in welding step.

[@arsitech-ltd]

@@Shein98 Dear, As i mentioned in group check warnings. It is impossible to tell reason without looking at file.

[@Shein98]

SimTech05 I sent images to group 🙂

[@cha-e_8565]

Thanks sir for the AWESOME video..BTW, Can I modelling the actual condition of bolt with hole tolerance in the abaqus. Let say, the bolt size is 16mm while the hole size is 20mm. In this regard, there are 2mm gap tolerance btw both surface. Do the abaqus capable to run this modelling?or it will be an error due to surface contact issues? or the software will interpret the gap as an issue and automatically resolve the problem like the overclosure problem that u has presented in this video?...Or the modelling can be simplified by simply ignoring the tolerance gap btw those surfaces?..thanks in advance.

[@arsitech-ltd]

Dear, Tolerance model you can stimulate. More you can take different assembly and run simulation... you will get better idea.

[@user-hz9nl3jv9k]

Hey sir, could you make an composite nonlinear simulation video?

[@arsitech-ltd]

Dear, It will take time. I have to finish contact, FSi, explicit series videos. However if u have doubt may i can help.

[@aju007pv]

Sir also can u explain contact non linearity

[@arsitech-ltd]

Already explained in video of my channel "SimTech05" - Abaqus playlist - linear & nonlinear Analysis in FEA, there are 4 videos. I suggest to go with all.

[@kannteudom4504]

Thanks for this great video sir! But I have followed as your explanation and still had error with "Displacement increment for contact is too big". Can you recommend some solutions?

[@arsitech-ltd]

Dear, many possibilities. Need to check bcs.

[@pawanrkadwadi8924]

Plz sir make tutorial on connections

[@arsitech-ltd]

Dear, I'm Continuing the same but in sequence.

[@murtadasadah7044]

Hi brother. Thanks alot for these informations that you gave us. I have problemes in contact penetration between steel surface and concrete surface in clamping fixed support. Can you help me or send your telegram phone?

[@arsitech-ltd]

Dear, Telegram group link and Facebook group link available in video discription.